Surrounded by a clutter of carton boxes, bottles of dishwashing liquid and rows of dry snacks, Ramasamy Vellasamy holds court behind a cashier. For nine hours a day since 1986, he has been running a provision shop on the ground floor of a housing block in northern Singapore and knows the neighbourhood and its residents like the back of his hand. Despite Samy Provision Shop’s enduring presence, it was barely breaking even, said Ramasamy, who lamented the struggle of adapting to the ever-shifting...